Why 75% of Americans Book Rental Cars Last-Minute, And Does It Work?

The short answer is that most Americans travel domestically, most of the time. International trips demand more coordination: flights locked in months ahead, visas, hotels, ground transport. On the other hand, a domestic weekend trip is different. Less complicated. You confirm the flight on Tuesday, book a hotel Thursday, and figure you'll grab a car at the airport when you land. The whole trip gets assembled on a compressed timeline.

Carla's data points to a few structural reasons this works often enough to stick: major airports carry high inventory, most trips are short (59% of American rentals last just one to three days), and mobile booking has made the whole process so frictionless that there's little pressure to plan ahead. Americans also tend to trust that cars will be available. In mature markets with large fleets, that confidence is usually warranted.

Usually.

Off-peak travel in secondary markets is where the procrastinator tends to come out ahead. Renting a midsize in Albuquerque in October or a compact in Pittsburgh on a Tuesday in February? You'll probably find reasonable rates and a reasonable selection. The lot has more cars than customers, and the pricing reflects that.

The Carla data supports this. January and February are the cheapest months to rent across the board, with average daily rates around $42 to $48. September through November runs moderate at $51 to $55. In those windows, last-minute availability tends to be solid and prices don't punish you for waiting.

Flexibility on vehicle class helps too. If you genuinely don't care whether you get a compact or an intermediate, last-minute works in your favor more often because you're not competing for a specific category. You're just competing for any available car, and that's a less crowded field.

July is the month to plan ahead. Carla's booking data shows July average daily rates at $72.75 versus $42.67 in January, a 70% premium that shows up regardless of destination. Book early for anything in June, July, or August.

Major events follow the same logic. World Cup 2026 runs across 16 North American host cities from June through July. Rental car demand in Dallas, Los Angeles, New York, Miami, and the other host cities will be intense. Last-minute in those markets during match weeks is a strategy for paying significantly more. Or walking.

Airport locations add another wrinkle. Carla's data shows airport pickups actually average less than city center locations ($51.18 versus $63.63 per day) thanks to intense competition among rental companies. But that advantage evaporates during peak periods. Show up without a reservation at LAX in July and you may find prices that would give you pause, or no cars at all. The 2021 rental shortage taught a lot of travelers this lesson at significant expense.

If you're heading into any of these scenarios, the mitigation is straightforward: check prices across multiple companies before assuming the first rate you see is representative. Carla aggregates rates from major rental companies in real time, so if a better option exists in that market and window, you'll find it in one pass rather than clicking through a dozen sites.

Where you're renting matters as much as when. Carla's data shows a wide range between the cheapest and most expensive US rental markets. Florida cities sit at the low end: Orlando at $32.71 per day, Miami at $32.95, Fort Lauderdale at $33.32. The Northeast runs significantly higher: New York at $69.08, Philadelphia at $64.03, Boston at $60.30.

That gap is real and persistent. If you have flexibility on destination, factoring rental car costs into your trip math can make a material difference. The Florida advantage comes from the combination of abundant inventory, year-round tourism, and intense competition among rental providers.

For summer and any recognized peak period (spring break, holidays, major events), book two to three weeks out at minimum. Lock in the rate early, then check prices again closer to your pickup date. Unlike airlines, most rental car reservations can be cancelled and rebooked without fees if a lower rate shows up later.

For off-peak travel in secondary markets, last-minute is often fine and occasionally cheaper. Keep an eye on prices in the days before your trip if you haven't committed.

At airport locations in high-demand markets, book early regardless of season. The inventory advantage that normally makes airports cheaper than city locations disappears under serious demand pressure.

Carla is a car rental comparison platform. This article was produced in partnership with Carla.